-x+20=9x-2x

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Solution for -x+20=9x-2x equation:


Simplifying
-1x + 20 = 9x + -2x

Reorder the terms:
20 + -1x = 9x + -2x

Combine like terms: 9x + -2x = 7x
20 + -1x = 7x

Solving
20 + -1x = 7x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-7x' to each side of the equation.
20 + -1x + -7x = 7x + -7x

Combine like terms: -1x + -7x = -8x
20 + -8x = 7x + -7x

Combine like terms: 7x + -7x = 0
20 + -8x = 0

Add '-20' to each side of the equation.
20 + -20 + -8x = 0 + -20

Combine like terms: 20 + -20 = 0
0 + -8x = 0 + -20
-8x = 0 + -20

Combine like terms: 0 + -20 = -20
-8x = -20

Divide each side by '-8'.
x = 2.5

Simplifying
x = 2.5

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